Open-File Report 02-98 Plate 12

UNITED STATES DEPARTMENT OF THE INTERIOR	OPEN-FILE REPORT 02-98
GEOLOGICAL SURVEY	PLATE 12

Detail of a surface gridded from the depth estimates, and representing the depth to magnetic sources. Locations of depth estimates are shown in white. Depths range from 0 (orange) to 2487 meters below ground level (deep blue). Selected contours at 0, 200, 400, and 600 meters.